Touhou Suichouka (Drunken Butterfly Flower) ~ Rootasuiitaa-tachi no Suisei (Drunkening and Sobering of Lotus-Eaters) (東方酔蝶華 ～ ロータスイーター達の酔醒) is an official Touhou comic, first revealed the September 26, 2019, in Comp Ace's November 2019 issue. The story is written by ZUN, and illustrated by Mizutaki, an artist already known for creating Touhou doujin comics. Although serialized in the monthly Comp Ace magazine, it's also released for free, with a month of delay, on ComicWalker and Nico Nico Seiga.

酔蝶華 is spelled with characters meaning "drunk", "butterfly" and "flower", respectively. Worth noting that 酔蝶花 is also known as 風蝶草, which are flowers in the Cleome genus, also named Spider flower (not to be confused with spider lilies): http://yasashi.info/ku_00005.htm
"Lotus-Eaters" refers to the race of the same in Greek mythology, who mainly fed on intoxicating lotus plants and displayed apathetic behaviour. It's also an expression in English meaning roughly "daydreamer".